Center-board for vessels



(N'Model.)

J. G. W. HAVENS.

CENTER 'EGARD FOB. VBSSBLS. y No. 259,308. Patented June 13, 1882.

Fig.

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INVENTOR:

NITED STATES JOHN Gr. W. HAVENS, OF METEDEGONK, NEW JERSEY.

CENTER-BOARD FOR VESSELS.

SPECIFICATION forming part of Letters Patent No. 259,308, dated June 13, 1882.

Application filed February 21, 1882. (No model.)

To all whom it may concern:

Be it known that I, J oHN GREENLIEF VEBB HAVENS, ot' the village of Metedeconk, in the county of Ocean and State ot' New Jersey, a citizen ot' the United States, have invented a new and useful attachment to be applied to all classes of boats and vessels to prevent them from broaching to; and I do hereby declare that the following is a full, clear, and exact description of the invention7 which will enable others skilled in the art to which it appertains .to make use of the same.

Heretofore boats and vessels approaching shore, especially in a heavy sea, have been liable to broach to or incline suddenly to windward, thereby being exposed to imminent dan ger ot' oversetting, and involving to the occupants consequent liability to loss ot' life.

The object of rnyinvention is to obviate the above disastrous results, and to this end it is to be applied to and used in boats or vessels for whatever purpose employed.

Figure l is a side view ofthe interior ofthe after part ot` a boat or vessel, with the starboard side of the box or well removed, in which A shows the board or non-broachingto appliance when lowered or in use, and B the same when raised or not in use. c a show the parts or sections of the rod or lever by which the appliance is lowered when in use, and b b the same when not in use. S shows the slot by means of which the appliance may be extended farther aft beyond the stern ot' the boat or vessel.

Fig. 2 represents the said center-board when extended beyond the dead-wood of the boat or vessel by means of said slot.

Fig. 3 is a view of the stern of a boat and of the said board or appliance when extended aft through the double or divided stern-post.

Similar letters in all figures indicate corresponding parts.

This nonbroachingto appliance is a centerhoard, located as herein described, to be eonstrncted wholly or in part of wood and metal, or ot' any substitute for wood or metal. In length it may be equal to one-fth (more or less) of the length of the boat or vessel; in width either less, equal to, or greater than the shown in the accompanying drawings, and

to be operated by a rod or lever jointed at or near the upper edge ofthe board or appliance in the most convenient manner.

l am aware that a center-board inserted in a trunk, both ot' which are similar in construction to my above-described appliance, is now in general use in vessels, placed in or near the middle ot' the vessel, both as to length and width, and also that a double board operating both forward and aft, has been employed 5 but both ot' these being designed and used for a different purpose-namely, to cause the vessel to incline to windward or go about-one or the other is necessary (in vessels withoutkeels)for that purpose, andneither can be successfully used or employed for the object for whichmy appliance is designed.

To operate the board as shown in Fig. 1 it is only necessary to raise the rod or lever to a vertical position, when a slight pressure will bring the board into position for use. To operate it as shown in Fig. 2 it will be necessary, in addition to the above, to raise the forward end of the same, by means ot' a rope, (shown in the drawings,) sufficiently to bring the pin on which the board is hung out of the niche in the after end of the slot, when the board will at once slide obliquely downward and aft. In this case the after part of the top ot' the well is left open to allow fore-and-at't play ot' the rod or lever.

The board or appliance, when not in use, may be held in position by a pin either through the board or through an eye or staple in the upper edge ofthe saine.

The advantage ot' my invention is that the board extends beyond the sternpost of the boat or vessel, and takes into water which would not be reached by a center-board as ordinarily constructed.

Having thus fully described my invention, what I desire to claim, and to secure by Letters Patent, is-

l. The combination, with boatsor vessels,

of a. center-board so located as to extend aft to be extended farther aft than the position beyond the dead-wood when said board is shown in Fig. 1 by n sliding motion downdown or in use, substantially as described in ward and aft by means of a slot in said board. ro

Fig. 1. JNO. GREENLIEF WEBB HAVENS.

2. The combination, with boats or vessels, of Witnesses a center-board extending a-ft beyond the dead- J. A. MACLAUCHLAN,

Wood, and mounted, as shown in Fig. 2, so as I W. S. SNYDER. 

